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<p>Thermochemical technologies such as gasification and pyrolysis have emerged as promising alternatives for transforming biomass. This study employed optimization techniques for the two processes under consideration: parametric analysis and response surfaces. Subsequently, the effect on economic performance was analyzed for the gasification and pyrolysis processes of rice husks in the Colombian Caribbean region. Subsequently, the study analyzed the impact on economic performance of rice husk gasification and pyrolysis processes in Colombia’s Caribbean region. The study examined the procurement of raw materials through a logistics analysis based on supply routes. A hierarchical analytical process was used to identify suitable areas for the installation of bioenergy plants, and ArcGIS Pro was employed for this analysis. The results of the response surfaces showed that for pyrolysis products, the maximum bio-oil yield was observed at a temperature of 450&#xa0;°C and a residence time greater than 3&#xa0;s. For the optimization of biochar yield, the trend indicated that process conditions corresponding to higher temperatures and longer residence times should be explored. Regarding gasification, the results showed that optimization tends toward higher moisture content (&gt; 6.24%) and an ER &lt; 0.1, conditions that would not be consistent with actual process conditions. The logistics-based economic analysis indicated that gasification technology is not economically viable for the evaluated scenarios. On the other hand, pyrolysis technology revealed a scenario for Scenario 2 (plant Cordoba) in which the selected site demonstrated economic pre-feasibility with an economic margin of 2.81% and a positive NPV in the first year of project implementation. The physicochemical characteristics of the pyrolysis products (biochar and bio-oil) and gasification products (syngas) showed promising characteristics as precursors for value-added molecules. Finally, the novelty of this work lies in the application of georeferencing systems as a solid and viable alternative for conducting techno-economic analysis of the conversion of biomass into energy and high-value products.</p> Graphical abstract <p></p>

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Energy potential study of pyrolysis and gasification processes applied to rice processing byproducts based on technical, logistic and experimental criteria

  • 期刊论文

  • 发表日期：

    2026年7月31日

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  • Myriam Quintero-Naucil,
  • Dionisio Malagón-Romero,
  • Juan P. Arrubla-Vélez,
  • Norma P. Durán Osorio,
  • Valentina Aristizábal-Marulanda

摘要

Thermochemical technologies such as gasification and pyrolysis have emerged as promising alternatives for transforming biomass. This study employed optimization techniques for the two processes under consideration: parametric analysis and response surfaces. Subsequently, the effect on economic performance was analyzed for the gasification and pyrolysis processes of rice husks in the Colombian Caribbean region. Subsequently, the study analyzed the impact on economic performance of rice husk gasification and pyrolysis processes in Colombia’s Caribbean region. The study examined the procurement of raw materials through a logistics analysis based on supply routes. A hierarchical analytical process was used to identify suitable areas for the installation of bioenergy plants, and ArcGIS Pro was employed for this analysis. The results of the response surfaces showed that for pyrolysis products, the maximum bio-oil yield was observed at a temperature of 450 °C and a residence time greater than 3 s. For the optimization of biochar yield, the trend indicated that process conditions corresponding to higher temperatures and longer residence times should be explored. Regarding gasification, the results showed that optimization tends toward higher moisture content (> 6.24%) and an ER < 0.1, conditions that would not be consistent with actual process conditions. The logistics-based economic analysis indicated that gasification technology is not economically viable for the evaluated scenarios. On the other hand, pyrolysis technology revealed a scenario for Scenario 2 (plant Cordoba) in which the selected site demonstrated economic pre-feasibility with an economic margin of 2.81% and a positive NPV in the first year of project implementation. The physicochemical characteristics of the pyrolysis products (biochar and bio-oil) and gasification products (syngas) showed promising characteristics as precursors for value-added molecules. Finally, the novelty of this work lies in the application of georeferencing systems as a solid and viable alternative for conducting techno-economic analysis of the conversion of biomass into energy and high-value products.

Graphical abstract